A pair of scissors and a pair of pliers both belong to the same class of levers.
Name the class of lever

Explanation

A pair of scissors
Mechanical advantage = `("load")/("effort")= ("effort arm")/("load arm")`
In scissors, load arm is longer than effort arm so its mechanical advantage is less than one while in pliers effort arm is longer than load arm and so its mechanical advantage is greater than one. Even if the mechanical advantage of a machine is less than one, it is useful because it helps to put the effort at convenient point.